Electricity GCSE questions
Cover the answers and try these Electricity checks first. The full quiz in the app includes hints.
How to use these
Write your answer, then check. If you miss one, open the Electricity lesson before you retry.
Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
An ammeter should be connected
Charge flow when 3.0 A passes for 8.0 s is
A 6.0 V PD across a 2.0 A current means the resistance is
In a series circuit the current is
Common mistakes
- PD is not "the current pushing". Current is the flow; PD is the energy difference that drives the flow. Time in Q = It must be seconds.
- Do not add parallel resistances like series. 4 ohms and 4 ohms in parallel is 2 ohms, not 8 ohms.
- Do not say the lamp uses more resistance to make light. Resistance increases because the metal is hotter.
- Do not leave time in minutes inside E = Pt if you want joules. 2 minutes = 120 s.
Answers and working
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